一种具有微纳孔隙结构的二氧化钛多孔膜层光催化系统

TB383; 采用溶胶-凝胶法配合以离子注入的方式,研制了一种具有纳米和亚微米(零点几个微米)孔隙结构的锐钛矿相二氧化钛光催化膜.首先通过常规的溶胶-凝胶法制得密实的二氧化钛膜层,然后采用具有一定动能的Fe离子轰击膜层,从而在膜层中形成大量的微纳孔隙.这些微纳孔隙明显提高了原膜层的比表面积.光催化降解甲基橙溶液的实验结果表明,无论是在紫外光下还是在可见光下,所得多孔膜层的光催化效果均优于未造孔的二氧化钛膜层....

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Bibliographic Details
Published in材料工程 no. 3; pp. 93 - 96
Main Author 刘培生 夏凤金 崔光
Format Journal Article
LanguageChinese
Published 北京师范大学核科学与技术学院,北京100875 2012
北京市辐射中心,北京100082%北京师范大学核科学与技术学院,北京,100875
Subjects
二氧化钛膜
光催化
多孔结构
光催化
多孔结构
二氧化钛膜
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ISSN1001-4381
1001-4381
DOI10.3969/j.issn.1001-4381.2012.03.020

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Summary:TB383; 采用溶胶-凝胶法配合以离子注入的方式,研制了一种具有纳米和亚微米(零点几个微米)孔隙结构的锐钛矿相二氧化钛光催化膜.首先通过常规的溶胶-凝胶法制得密实的二氧化钛膜层,然后采用具有一定动能的Fe离子轰击膜层,从而在膜层中形成大量的微纳孔隙.这些微纳孔隙明显提高了原膜层的比表面积.光催化降解甲基橙溶液的实验结果表明,无论是在紫外光下还是在可见光下,所得多孔膜层的光催化效果均优于未造孔的二氧化钛膜层.
Bibliography:11-1800/TB
photocatalysis; titanium dioxide film; porous structure
LIU Pei-sheng,XIA Feng-jin,CUI Guang（1 College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;2 Beijing Radiation Center,Beijing 100082,China）
A porous anatase TiO2 film with nano and sub-micro pores was fabricated by sol-gel method with ion implantation.A dense film was firstly fabricated by the conventional sol-gel method,which was then bombed by Fe ion with a certain kinetic energy to generate a great amount of micro-nano pores.These micro-nano pores significantly enlarge the specific surface area of the titanium dioxide film.The experimental results of photocatalytic decomposition of a methyl orange solution display that the porous film is better than the dense film for the photocatalysis both under ultraviolet light and under visible light.
ISSN:1001-4381
1001-4381
DOI:10.3969/j.issn.1001-4381.2012.03.020